neuroprinciples's profile picture. searching for principles, empirical approach, integration | doing comp neuro & psych | PI @CompNeuro_lab @tudresden_de | ex-@MPICybernetics (Dayan & Logothetis)

Shervin Safavi

@neuroprinciples

searching for principles, empirical approach, integration | doing comp neuro & psych | PI @CompNeuro_lab @tudresden_de | ex-@MPICybernetics (Dayan & Logothetis)

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" ... but to understand and advance the *collective understanding*"; How to Criticize with Kindness brainpickings.org/2014/03/28/dan… via @brainpicker


Shervin Safavi reposted

Happy to share my first post-doc paper with Peter Dayan just published at @NeuroCellPress "Multistability, Perceptual Value, and Internal Foraging" Paper (free access before Oct 18th): authors.elsevier.com/a/1ffq33BtfH1Y… No access? Email me at [email protected] 🧵👇


Shervin Safavi reposted

Popular opinion: V1's intracortical connections are too slow, feedback connections convey contextual influences in neural responses. Analysis in a unique set of data: conduction velocity of the intracortical axons grows with distance and is fast enough osf.io/preprints/psya…


Shervin Safavi reposted

Brain-like features in homeostatic deep reinforcement learning agents (Thank you @neuroprinciples!) abstracts.g-node.org/conference/BC2…


Shervin Safavi reposted

Let me (mis)use @taherehtoosi's tweet on her great study, to also draw attention to our approach to bistable perception based on reinforcement learning and decision-making models (which I think brings a complementary perspective): x.com/neuroprinciple…

Happy to share my first post-doc paper with Peter Dayan just published at @NeuroCellPress "Multistability, Perceptual Value, and Internal Foraging" Paper (free access before Oct 18th): authors.elsevier.com/a/1ffq33BtfH1Y… No access? Email me at [email protected] 🧵👇



Shervin Safavi reposted

How does our brain excel at complex object recognition, yet get fooled by simple illusory contours? What unifying principle governs all Gestalt laws of perceptual organization? We may have an answer: integration of learned priors through feedback. New paper with Ken Miller! 🧵


Shervin Safavi reposted

My lab @MPI_Biochem in Martinsried/Munich is recruiting PhD students through this program. Deadline October 31.

🎓 Ready to expand your horizons in #AI research? Do your PhD with 2 leading institutions across Europe & build your network with the Academic Track in the #ELLISPhD Program. Apply now via our central recruiting portal until Oct 31. 👉 All info: bit.ly/45DSe75

ELLISforEurope's tweet image. 🎓  Ready to expand your horizons in #AI research? Do your PhD with 2 leading institutions across Europe & build your network with the Academic Track in the #ELLISPhD Program.

Apply now via our central recruiting portal until Oct 31.

👉 All info: bit.ly/45DSe75


Shervin Safavi reposted

Our review is out 🎉 We discuss how neural computations in the retina shape behavior, continuing the top-down tradition of Lettvin et al.'s classic bug-detector neurons Check it out 👀 arevie.ws/46HMEjd @AnnualReviews w/ coauthors @AnnaIntegrated & @SerenaRiccitel2

The most recent volume of the Annual Review of Vision Science is online. Check out the table of contents arevie.ws/3Wklava



Shervin Safavi reposted

Congratulations to John Clarke, Michael Devoret, & John Martinis @NobelPrize in Physics "for the discovery of macroscopic quantum mechanical tunneling & energy quantization in an electric circuit" in 3 PRLs journals.aps.org/prl/abstract/1… journals.aps.org/prl/abstract/1… journals.aps.org/prl/abstract/1…

PhysRevLett's tweet image. Congratulations to John Clarke, Michael Devoret, & John Martinis 
@NobelPrize in Physics "for the discovery of macroscopic quantum mechanical tunneling & energy quantization in an electric circuit" in 3 PRLs
journals.aps.org/prl/abstract/1…
journals.aps.org/prl/abstract/1…
journals.aps.org/prl/abstract/1…

Shervin Safavi reposted

Our lab at the European Neuroscience Institute Göttingen is looking for a highly skilled and motivated 👩‍🔬TECHNICAL ASSISTANT. Are you proficient in histological and wet lab techniques and lab management? Then come apply for our position (4 years contract)! umg.recruiting-portal.com/r/z004xflh7ru9…


Shervin Safavi reposted

What defines a brain state? 🧠 If you are also interested in answering this question, join us in "Toward a joint definition of neural-behavioral states", #BernsteinConference full-day workshop, Co-organized by @neuroprinciples and I. (1/4)

ArmanBehrad's tweet image. What defines a brain state? 🧠 If you are also interested in answering this question, join us in "Toward a joint definition of neural-behavioral states", #BernsteinConference full-day workshop, Co-organized by @neuroprinciples  and I. (1/4)

Shervin Safavi reposted

Oops, wrong time in the original tweet! It will be 15:30 CET 😉

In our Learning Club @CompNeuro_lab today (Sep 25, Thu, 2pm CET), @DengPan18 will tell us about his recent paper (👇) [joint work w/ Rushworth lab]. Want to attend, send an empty email to [email protected] to get the link!



Shervin Safavi reposted

In our Learning Club @CompNeuro_lab today (Sep 25, Thu, 2pm CET), @DengPan18 will tell us about his recent paper (👇) [joint work w/ Rushworth lab]. Want to attend, send an empty email to [email protected] to get the link!

🚨We believe this is a major step forward in how we study hippocampus function in healthy humans. Using novel behavioral tasks, fMRI, RL & RNN modeling, and transcranial ultrasound stimulation (TUS), we demonstrate the causal role of hippocampus in relational structure learning.

DengPan18's tweet image. 🚨We believe this is a major step forward in how we study hippocampus function in healthy humans.

Using novel behavioral tasks, fMRI, RL & RNN modeling, and transcranial ultrasound stimulation (TUS), we demonstrate the causal role of hippocampus in relational structure learning.


Shervin Safavi reposted

In our Learning Club @CompNeuro_lab today (Aug 18, Thursday, 2pm CET), @LiebanaSamuel will tell us about his paper (cell.com/cell/fulltext/…) [joint work w/ @SaxeLab & @ArminLak ]. Want to attend, send an empty email to [email protected] to get the link!


Shervin Safavi reposted

📢 We have a new notebook that demoes DPAD (@NatureNeuro 2024) in public neural-behavioral data from start to finish, answers FAQs, & gives best practice tips! Check it out! 🔗 Link is in the repo: github.com/ShanechiLab/DP… 🙌 Thanks @Vahidi_Parsa & @MaryamShanechi! Paper 🧵⬇️

omidsani's tweet image. 📢 We have a new notebook that demoes DPAD (@NatureNeuro 2024) in public neural-behavioral data from start to finish, answers FAQs, & gives best practice tips! Check it out!

🔗 Link is in the repo: github.com/ShanechiLab/DP…

🙌 Thanks @Vahidi_Parsa & @MaryamShanechi!

Paper 🧵⬇️
omidsani's tweet image. 📢 We have a new notebook that demoes DPAD (@NatureNeuro 2024) in public neural-behavioral data from start to finish, answers FAQs, & gives best practice tips! Check it out!

🔗 Link is in the repo: github.com/ShanechiLab/DP…

🙌 Thanks @Vahidi_Parsa & @MaryamShanechi!

Paper 🧵⬇️

Excited that our paper made the cover of @NatureNeuro! We developed DPAD, an AI framework for dynamical modeling of neural-behavioral data and dissociating behaviorally relevant neural dynamics. 📜nature.com/articles/s4159… 💻github.com/ShanechiLab/DP… 👏@omidsani



Shervin Safavi reposted

The central visual field not only benefits from a denser sampling in retina and a higher cortical magnification factor, but also enjoys more top-down feedback along the visual pathway to aid visual recognition. See psychophysics evidence tinyurl.com/mfxwk5wk

Li_Zhaoping's tweet image. The central visual field not only benefits from a denser sampling in retina and a higher cortical magnification factor, but also enjoys more top-down feedback along the visual pathway to aid visual recognition. See psychophysics evidence  tinyurl.com/mfxwk5wk

Shervin Safavi reposted

Check out our new preprint where we analyzed the dynamics of over ten thousand neurons across 223 brain areas and uncovered a surprising universal principle that describes the organization of intrinsic timescales across the entire mouse brain, including subcortical structures!

Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:

YanliangShi's tweet image. Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:


Shervin Safavi reposted

Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:

YanliangShi's tweet image. Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:

Shervin Safavi reposted

New work with @YanliangShi, @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna. We uncover the principles that organize intrinsic timescales of single neurons across the entire brain, unifying regional specialization with universal brain-wide dynamics: biorxiv.org/content/10.110…

Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:

YanliangShi's tweet image. Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana_zeraati, @IntlBrainLab, @SelfOrgAnna, @EngelTatiana: biorxiv.org/content/10.110… Here is a #tweeprint:


Shervin Safavi reposted

Brain-wide organization of intrinsic timescales at single-neuron resolution biorxiv.org/content/10.110…


Shervin Safavi reposted

If you are still around for #ccn2025, and want to know more about internal states, and cool methods to find them visit @ArmanBehrad's poster C160!

Still curious about uncovering internal state — completely unsupervised? We start in 30 minutes.



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